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136457-23-3

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136457-23-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136457-23-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,4,5 and 7 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 136457-23:
(8*1)+(7*3)+(6*6)+(5*4)+(4*5)+(3*7)+(2*2)+(1*3)=133
133 % 10 = 3
So 136457-23-3 is a valid CAS Registry Number.

136457-23-3Relevant articles and documents

Chemoenzymatic Synthesis of Carbocyclic Oxetanocin-A Involving a Novel Photochemical Rearrangement

Cotterill, Ian C.,Roberts, Stanley M.

, p. 2585 - 2586 (2007/10/02)

The anti-herpes agent carbocyclic oxetanocin-A (-)-2 has been prepared from the bicyclic ketone 3 via resolution of the bromohydrin 4 (using an enzyme-catalysed trans-esterification reaction) and a photocatalysed rearrangement of the epoxide (+)-6 to the

PHOTOLYSIS OF 2,3-EPOXY-7,7-DIPHENYLBICYCLOHEPTAN-6-ONES AND 2-exo, 3-exo-DIHYDROXY-7,7-DIPHENYLBICYCLOHEPTAN-6-ONE

Davies, H. Geoff,Rahman, Shahzad S.,Roberts, Stanley M.,Wakefield, Basil J.,Winders, John A.

, p. 85 - 90 (2007/10/02)

Photolysis of 2,3-endo-epoxy-7,7-diphenylbicycloheptan-6-one ( 2 ) in methanol gave products ( 4 ), ( 8 ) derived from an oxacarbene intermediate and the products ( 5 ) - ( 7 ), ( 9 ) derived from an initially formed alkenylketene.Photolysis of the

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